[PATCH v3 12/18] HID: steelseries: Add mic volume ALSA mixer control
From: Sriman Achanta
Date: Fri Feb 27 2026 - 18:55:49 EST
Expose microphone gain as a writable ALSA integer mixer control
("Mic Volume"). The valid range is per-device; mic_volume_min and
mic_volume_max are added to the device info struct to accommodate models
with a non-zero minimum (e.g. the Arctis Nova Pro, which has a range
of 1-10).
The write command (0x37) is added to the Nova 3P, Nova 5, and Nova Pro
write handlers. On the Nova Pro, the current mic volume is recovered
from the 0x06/0xb0 settings response via a new parse_settings hook.
Signed-off-by: Sriman Achanta <srimanachanta@xxxxxxxxx>
---
drivers/hid/hid-steelseries.c | 141 ++++++++++++++++++++++++++++++++--
1 file changed, 134 insertions(+), 7 deletions(-)
diff --git a/drivers/hid/hid-steelseries.c b/drivers/hid/hid-steelseries.c
index 2bdf772432d0..1339f965f67f 100644
--- a/drivers/hid/hid-steelseries.c
+++ b/drivers/hid/hid-steelseries.c
@@ -28,10 +28,12 @@
#define SS_CAP_BT_DEVICE_CONNECTED BIT(4)
#define SS_CAP_EXTERNAL_CONFIG BIT(5)
#define SS_CAP_SIDETONE BIT(6)
+#define SS_CAP_MIC_VOLUME BIT(7)
#define SS_QUIRK_STATUS_SYNC_POLL BIT(0)
#define SS_SETTING_SIDETONE 0
+#define SS_SETTING_MIC_VOLUME 1
struct steelseries_device;
@@ -43,6 +45,8 @@ struct steelseries_device_info {
u8 async_interface;
u8 sidetone_max;
+ u8 mic_volume_min;
+ u8 mic_volume_max;
int (*request_status)(struct hid_device *hdev);
void (*parse_status)(struct steelseries_device *sd, u8 *data, int size);
@@ -72,10 +76,12 @@ struct steelseries_device {
struct snd_ctl_elem_id chatmix_game_id;
struct snd_ctl_elem_id mic_muted_id;
struct snd_ctl_elem_id sidetone_id;
+ struct snd_ctl_elem_id mic_volume_id;
u8 chatmix_chat;
u8 chatmix_game;
bool mic_muted;
u8 sidetone;
+ u8 mic_volume;
bool bt_enabled;
bool bt_device_connected;
@@ -493,6 +499,9 @@ static int steelseries_arctis_nova_3p_write_setting(struct hid_device *hdev,
case SS_SETTING_SIDETONE:
cmd = 0x39;
break;
+ case SS_SETTING_MIC_VOLUME:
+ cmd = 0x37;
+ break;
default:
return -EINVAL;
}
@@ -519,6 +528,9 @@ static int steelseries_arctis_nova_5_write_setting(struct hid_device *hdev,
case SS_SETTING_SIDETONE:
cmd = 0x39;
break;
+ case SS_SETTING_MIC_VOLUME:
+ cmd = 0x37;
+ break;
default:
return -EINVAL;
}
@@ -548,6 +560,9 @@ static int steelseries_arctis_nova_pro_write_setting(struct hid_device *hdev,
case SS_SETTING_SIDETONE:
cmd = 0x39;
break;
+ case SS_SETTING_MIC_VOLUME:
+ cmd = 0x37;
+ break;
default:
return -EINVAL;
}
@@ -839,14 +854,28 @@ static void steelseries_arctis_nova_7_gen2_parse_settings(
switch (data[0]) {
case 0x20:
+ sd->mic_volume = data[1];
sd->sidetone = data[2];
break;
+ case 0x37:
+ sd->mic_volume = data[1];
+ break;
case 0x39:
sd->sidetone = data[1];
break;
}
}
+static void steelseries_arctis_nova_pro_parse_settings(
+ struct steelseries_device *sd, u8 *data, int size)
+{
+ if (size < 10)
+ return;
+
+ if (data[0] == 0x06 && data[1] == 0xb0)
+ sd->mic_volume = data[9];
+}
+
static void steelseries_arctis_nova_pro_parse_status(struct steelseries_device *sd,
u8 *data, int size)
{
@@ -914,9 +943,10 @@ static const struct steelseries_device_info arctis_9_info = {
static const struct steelseries_device_info arctis_nova_3p_info = {
.sync_interface = 4,
- .capabilities = SS_CAP_BATTERY | SS_CAP_SIDETONE,
+ .capabilities = SS_CAP_BATTERY | SS_CAP_SIDETONE | SS_CAP_MIC_VOLUME,
.quirks = SS_QUIRK_STATUS_SYNC_POLL,
.sidetone_max = 10,
+ .mic_volume_max = 14,
.request_status = steelseries_arctis_nova_3p_request_status,
.parse_status = steelseries_arctis_nova_3p_parse_status,
.write_setting = steelseries_arctis_nova_3p_write_setting,
@@ -924,9 +954,10 @@ static const struct steelseries_device_info arctis_nova_3p_info = {
static const struct steelseries_device_info arctis_nova_5_info = {
.sync_interface = 3,
- .capabilities = SS_CAP_BATTERY | SS_CAP_SIDETONE,
+ .capabilities = SS_CAP_BATTERY | SS_CAP_SIDETONE | SS_CAP_MIC_VOLUME,
.quirks = SS_QUIRK_STATUS_SYNC_POLL,
.sidetone_max = 10,
+ .mic_volume_max = 15,
.request_status = steelseries_arctis_nova_request_status,
.parse_status = steelseries_arctis_nova_5_parse_status,
.write_setting = steelseries_arctis_nova_5_write_setting,
@@ -934,9 +965,11 @@ static const struct steelseries_device_info arctis_nova_5_info = {
static const struct steelseries_device_info arctis_nova_5x_info = {
.sync_interface = 3,
- .capabilities = SS_CAP_BATTERY | SS_CAP_CHATMIX | SS_CAP_SIDETONE,
+ .capabilities = SS_CAP_BATTERY | SS_CAP_CHATMIX | SS_CAP_SIDETONE |
+ SS_CAP_MIC_VOLUME,
.quirks = SS_QUIRK_STATUS_SYNC_POLL,
.sidetone_max = 10,
+ .mic_volume_max = 15,
.request_status = steelseries_arctis_nova_request_status,
.parse_status = steelseries_arctis_nova_5x_parse_status,
.write_setting = steelseries_arctis_nova_5_write_setting,
@@ -944,9 +977,11 @@ static const struct steelseries_device_info arctis_nova_5x_info = {
static const struct steelseries_device_info arctis_nova_7_info = {
.sync_interface = 3,
- .capabilities = SS_CAP_BATTERY | SS_CAP_CHATMIX | SS_CAP_SIDETONE,
+ .capabilities = SS_CAP_BATTERY | SS_CAP_CHATMIX | SS_CAP_SIDETONE |
+ SS_CAP_MIC_VOLUME,
.quirks = SS_QUIRK_STATUS_SYNC_POLL,
.sidetone_max = 3,
+ .mic_volume_max = 7,
.request_status = steelseries_arctis_nova_request_status,
.parse_status = steelseries_arctis_nova_7_parse_status,
.write_setting = steelseries_arctis_nova_5_write_setting,
@@ -954,10 +989,12 @@ static const struct steelseries_device_info arctis_nova_7_info = {
static const struct steelseries_device_info arctis_nova_7p_info = {
.sync_interface = 3,
- .capabilities = SS_CAP_BATTERY,
+ .capabilities = SS_CAP_BATTERY | SS_CAP_MIC_VOLUME,
.quirks = SS_QUIRK_STATUS_SYNC_POLL,
+ .mic_volume_max = 7,
.request_status = steelseries_arctis_nova_request_status,
.parse_status = steelseries_arctis_nova_7_parse_status,
+ .write_setting = steelseries_arctis_nova_5_write_setting,
};
static const struct steelseries_device_info arctis_nova_7_gen2_info = {
@@ -965,8 +1002,10 @@ static const struct steelseries_device_info arctis_nova_7_gen2_info = {
.async_interface = 5,
.capabilities = SS_CAP_BATTERY | SS_CAP_CHATMIX | SS_CAP_MIC_MUTE |
SS_CAP_BT_ENABLED | SS_CAP_BT_DEVICE_CONNECTED |
- SS_CAP_EXTERNAL_CONFIG | SS_CAP_SIDETONE,
+ SS_CAP_EXTERNAL_CONFIG | SS_CAP_SIDETONE |
+ SS_CAP_MIC_VOLUME,
.sidetone_max = 3,
+ .mic_volume_max = 7,
.request_status = steelseries_arctis_nova_request_status,
.parse_status = steelseries_arctis_nova_7_gen2_parse_status,
.request_settings = steelseries_arctis_nova_7_gen2_request_settings,
@@ -978,11 +1017,14 @@ static const struct steelseries_device_info arctis_nova_pro_info = {
.sync_interface = 4,
.capabilities = SS_CAP_BATTERY | SS_CAP_CHATMIX | SS_CAP_MIC_MUTE |
SS_CAP_BT_ENABLED | SS_CAP_BT_DEVICE_CONNECTED |
- SS_CAP_SIDETONE,
+ SS_CAP_SIDETONE | SS_CAP_MIC_VOLUME,
.quirks = SS_QUIRK_STATUS_SYNC_POLL,
.sidetone_max = 3,
+ .mic_volume_min = 1,
+ .mic_volume_max = 10,
.request_status = steelseries_arctis_nova_pro_request_status,
.parse_status = steelseries_arctis_nova_pro_parse_status,
+ .parse_settings = steelseries_arctis_nova_pro_parse_settings,
.write_setting = steelseries_arctis_nova_pro_write_setting,
};
@@ -1343,6 +1385,71 @@ static const struct snd_kcontrol_new steelseries_sidetone_control = {
.put = steelseries_sidetone_put,
};
+static int steelseries_mic_volume_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct steelseries_device *sd = snd_kcontrol_chip(kcontrol);
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+ uinfo->value.integer.min = sd->info->mic_volume_min;
+ uinfo->value.integer.max = sd->info->mic_volume_max;
+ uinfo->value.integer.step = 1;
+ return 0;
+}
+
+static int steelseries_mic_volume_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct steelseries_device *sd = snd_kcontrol_chip(kcontrol);
+ unsigned long flags;
+
+ spin_lock_irqsave(&sd->lock, flags);
+ ucontrol->value.integer.value[0] = sd->mic_volume;
+ spin_unlock_irqrestore(&sd->lock, flags);
+ return 0;
+}
+
+static int steelseries_mic_volume_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct steelseries_device *sd = snd_kcontrol_chip(kcontrol);
+ unsigned long flags;
+ u8 new_mic_volume;
+ int ret;
+
+ new_mic_volume = ucontrol->value.integer.value[0];
+ if (new_mic_volume < sd->info->mic_volume_min ||
+ new_mic_volume > sd->info->mic_volume_max)
+ return -EINVAL;
+
+ spin_lock_irqsave(&sd->lock, flags);
+ if (sd->mic_volume == new_mic_volume) {
+ spin_unlock_irqrestore(&sd->lock, flags);
+ return 0;
+ }
+ spin_unlock_irqrestore(&sd->lock, flags);
+
+ ret = sd->info->write_setting(sd->hdev, SS_SETTING_MIC_VOLUME,
+ new_mic_volume);
+ if (ret)
+ return ret;
+
+ spin_lock_irqsave(&sd->lock, flags);
+ sd->mic_volume = new_mic_volume;
+ spin_unlock_irqrestore(&sd->lock, flags);
+
+ return 1;
+}
+
+static const struct snd_kcontrol_new steelseries_mic_volume_control = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Mic Volume",
+ .info = steelseries_mic_volume_info,
+ .get = steelseries_mic_volume_get,
+ .put = steelseries_mic_volume_put,
+};
+
static int steelseries_snd_register(struct steelseries_device *sd)
{
struct hid_device *hdev = sd->hdev;
@@ -1400,6 +1507,21 @@ static int steelseries_snd_register(struct steelseries_device *sd)
sd->sidetone_id = kctl->id;
}
+ if (sd->info->capabilities & SS_CAP_MIC_VOLUME) {
+ struct snd_kcontrol *kctl;
+ struct snd_kcontrol_new mic_vol_ctl = steelseries_mic_volume_control;
+
+ mic_vol_ctl.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
+ if (sd->info->capabilities & SS_CAP_EXTERNAL_CONFIG)
+ mic_vol_ctl.access |= SNDRV_CTL_ELEM_ACCESS_VOLATILE;
+
+ kctl = snd_ctl_new1(&mic_vol_ctl, sd);
+ ret = snd_ctl_add(sd->card, kctl);
+ if (ret < 0)
+ goto err_free_card;
+ sd->mic_volume_id = kctl->id;
+ }
+
ret = snd_card_register(sd->card);
if (ret < 0)
goto err_free_card;
@@ -1431,6 +1553,7 @@ static int steelseries_raw_event(struct hid_device *hdev,
u8 old_chatmix_game;
bool old_mic_muted;
u8 old_sidetone;
+ u8 old_mic_volume;
bool is_async_interface = false;
if (hdev->product == USB_DEVICE_ID_STEELSERIES_SRWS1)
@@ -1446,6 +1569,7 @@ static int steelseries_raw_event(struct hid_device *hdev,
old_chatmix_game = sd->chatmix_game;
old_mic_muted = sd->mic_muted;
old_sidetone = sd->sidetone;
+ old_mic_volume = sd->mic_volume;
if (hid_is_usb(hdev)) {
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
@@ -1509,6 +1633,9 @@ static int steelseries_raw_event(struct hid_device *hdev,
if (sd->sidetone != old_sidetone)
snd_ctl_notify(sd->card, SNDRV_CTL_EVENT_MASK_VALUE,
&sd->sidetone_id);
+ if (sd->mic_volume != old_mic_volume)
+ snd_ctl_notify(sd->card, SNDRV_CTL_EVENT_MASK_VALUE,
+ &sd->mic_volume_id);
}
return 0;
--
2.53.0